什么是 Spring Boot Admin？

codecentric 的 Spring Boot Admin 是一个社区项目，用于管理和监控您的Spring Boot ®应用程序。应用程序向我们的 Spring Boot Admin Client 注册（通过 HTTP）或使用 Spring Cloud ®（例如 Eureka、Consul）发现。UI 只是一个位于 Spring Boot Actuator 端点之上的 Vue.js 应用程序。 

整合admin

版本

 Server

pom 

<properties>
        <java.version>11</java.version>
        <spring-boot-admin.version>2.3.1</spring-boot-admin.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-server</artifactId>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>de.codecentric</groupId>
                <artifactId>spring-boot-admin-dependencies</artifactId>
                <version>${spring-boot-admin.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

 yml

server:
  port: 8090
  servlet:
    contest-path: /
spring:
  application:
    name: admin-server

启动类

@SpringBootApplication
@EnableAdminServer
public class ServerApplication {
 
    public static void main(String[] args) {
        SpringApplication.run(ServerApplication.class, args);
    }
 
}

Client

pom

<properties>
        <java.version>11</java.version>
        <spring-boot-admin.version>2.3.1</spring-boot-admin.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
        </dependency>
    </dependencies>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>de.codecentric</groupId>
                <artifactId>spring-boot-admin-dependencies</artifactId>
                <version>${spring-boot-admin.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

yml

server:
  port: 8091
  servlet:
    contest-path: /
spring:
  application:
    name: admin-client
  boot:
    admin:
      client:
        url: http://localhost:8090
management:
  endpoints:
    web:
      exposure:
        include: '*'
  endpoint:
    health:
      show-details: always

测试

分别启动8090和8091项目，下图说明Client成功在Server端注册

打开浏览器输入http://localhost:8090回车

 点击实例进入监控页面

功能不一一列举了，admin功能包括：

• 显示 name/id 和版本号
• 显示在线状态
• Logging日志级别管理
• JMX beans管理
• Threads会话和线程管理
• Trace应用请求跟踪
• 应用运行参数信息，如：
• Java 系统属性
• Java 环境变量属性
• 内存信息
• Spring 环境属性

安全认证（security）

添加安全认证也很简单，需要在原来文件的基础上添加以下配置即可：

Server端

pom

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

SecuritySecureConfig

import de.codecentric.boot.admin.server.config.AdminServerProperties;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;
import org.springframework.security.web.csrf.CookieCsrfTokenRepository;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
 
import java.util.UUID;
 
/**
 * @ClassName : SecuritySecureConfig  //类名
 * @Description :   //描述
 * @Author :   //作者
 * @Date: 2021-06-04 15:31  //时间
 */
@Configuration(proxyBeanMethods = false)
public class SecuritySecureConfig extends WebSecurityConfigurerAdapter {
 
    private final AdminServerProperties adminServer;
 
    private final SecurityProperties security;
 
    public SecuritySecureConfig(AdminServerProperties adminServer, SecurityProperties security) {
        this.adminServer = adminServer;
        this.security = security;
    }
 
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
        successHandler.setTargetUrlParameter("redirectTo");
        successHandler.setDefaultTargetUrl(this.adminServer.path("/"));
 
        http.authorizeRequests(
                (authorizeRequests) -> authorizeRequests.antMatchers(this.adminServer.path("/assets/**")).permitAll()
                        .antMatchers(this.adminServer.path("/actuator/info")).permitAll()
                        .antMatchers(this.adminServer.path("/actuator/health")).permitAll()
                        .antMatchers(this.adminServer.path("/login")).permitAll().anyRequest().authenticated()
        ).formLogin(
                (formLogin) -> formLogin.loginPage(this.adminServer.path("/login")).successHandler(successHandler).and()
        ).logout((logout) -> logout.logoutUrl(this.adminServer.path("/logout"))).httpBasic(Customizer.withDefaults())
                .csrf((csrf) -> csrf.csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
                        .ignoringRequestMatchers(
                                new AntPathRequestMatcher(this.adminServer.path("/instances"),
                                        HttpMethod.POST.toString()),
                                new AntPathRequestMatcher(this.adminServer.path("/instances/*"),
                                        HttpMethod.DELETE.toString()),
                                new AntPathRequestMatcher(this.adminServer.path("/actuator/**"))
                        ))
                .rememberMe((rememberMe) -> rememberMe.key(UUID.randomUUID().toString()).tokenValiditySeconds(1209600));
    }
 
    // Required to provide UserDetailsService for "remember functionality"
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser(security.getUser().getName())
                .password("{noop}" + security.getUser().getPassword()).roles("USER");
    }
 
}

yml

spring:
  security:
    user:
      name: 'admin'
      password: 'admin'

Client端

yml

spring:
  boot:
    admin:
      client:
        username: 'admin'
        password: 'admin'

测试

重新启动8090和8091项目

输入配置的用户名密码即可登录（此处是'admin'）

邮件通知

admin支持邮件通知，配置如下：

（集成的邮箱以自己需求为主，此处以163邮箱为例）

Server端

pom

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

yml

spring:
  mail:
    host: smtp.163.com
    username: 发送人@163.com
    password: 授权码
  boot:
    admin:
      notify:
        mail:
          enabled: true
          to: 接收人@xx.com
          from: 发送人@163.com

获取授权码

已经拿到邮箱授权码的可以跳过此步骤

打开浏览器进入https://mail.163.com/登录163邮箱，成功后

这里需要扫描一下二维码发送短信开启（个人吐槽：有点坑短信费）

发送成功后选择'我已发送'，把红圈里的授权码复制下来替换掉上面yml中的'授权码'文字

然后修改发送人和接收人邮箱地址，这里要注意一下，username和from必须是相同的邮箱，to是接收人的邮箱

修改完成后重启8090项目

测试

登录进入监控页面

此刻两个项目都正常运行，停止8091项目

启动8091项目

离线邮件

上线邮件

以上就是本篇的全部内容，下面附上github代码地址

springboot-admin

参考资料

1.https://codecentric.github.io/spring-boot-admin/current/#clustering-support

2.https://blog.csdn.net/forezp/article/details/86105850